In the first episode of Season 4, our host Jerry Brotton finds himself at one of the world's largest and most active exploration-focused institutions: the Royal Geographical Society (RGS) in London. He meets with Cartographic Collections Manager Dr. Katie Parker to pore over a mid-sixteenth century treasure that both the RGS and The Sunderland Collection are privileged to own an example of. 



Produced in around 1550, this atlas by Battista Agnese is a luxurious curation of 13 hand-drawn portolan charts of the known world. Jerry and Katie explore what these exquisite maps show, and who would have owned them. They discuss the European desire for imperial expansion in pursuit of wealth, from silver and gold in the west to spices in the east. We also learn more from Katie’s expertise in 18th-century European maritime history and Pacific voyages of exploration. 



From historians, scientists and writers to creatives and cultural custodians, people have used maps as a source of knowledge, guidance, and inspiration for centuries. Join us in this award winning podcast (Gold in Education at the British Podcast Awards 2025) as Jerry Brotton invites a guest to share a map close to their heart - and unfurl the ideas, inspirations, and stories behind it.



If you’re fascinated by history, art, adventure and culture, why not become part of a global community of fellow explorers as we ask - What’s your map?



What’s Your Map? is brought to you by Oculi Mundi (‘eyes of the world’), the online home of The Sunderland Collection of antique maps and atlases.



For a fully immersive experience, visit Oculi-Mundi.com/podcast to explore each of the maps as you listen.